/*
* @Author: gavin
* @Date:   2017-12-21 00:53:10
* @Last Modified by:   gavin
* @Last Modified time: 2017-12-21 00:54:52
*/
.404{
    text-align: center; /*让div内部文字居中*/
    background-color: #fff;
    border-radius: 20px;
    width: 300px;
    height: 350px;
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}
